Quantity   Component name
1 × OLED display
1 × DC vibration motor
1 × 1N4001 Diode (surface mount)
1 × ESP32
4 × Button (any type)
1 × Charge Controller (Part # MCP73831T-5ACI/OT)
1 × USB-UART module
1 × USB-C Port (surface mount)
1 × Diode (Part # 1N4448W-TP)
1 × Transistor (Part # MMBT3904-TP)